Invisible heart cup



FIG. 1 is a right side elevational view of an invisible heart cup showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a perspective view thereof; and,

FIG. 8 is a top perspective view thereof in a position of use. 

The ornamental design for an invisible heart cup, as shown and described. 